"The data point is likely unsurprising as the trend in our survey has been moving toward Twitter over the past couple of years," they said.

"Overall, regardless of the trend in teen preference toward other networks, we continue to believe that Facebook has additional avenues for monetization in Instagram and video in the coming months," they added.

Two other networks

Statista's chart also showed Facebook, Twitter and Instagram beating two other social networks - Tumblr and Google+ - by a wide margin.

Tumblr had a measly three-percent share among US teens in Fall 2012, though the share went up to four percent in Spring 2013 and Fall 2013.

Google+ appeared to fare worse, from six percent in Fall 2012 to five percent in Spring 2013 and three percent in Fall 2013. — TJD, GMA News